As per Bombay, above. Note, however, that you need the "energy" producing capabilities in an amp in order to enjoy the dynamic headroom in music. In Bombaywalla's example above, the amp will be able to give you ~20db of headroom (difference b/ween the lowest amplitude and the highest, in the same piece of music, without changing the volume) without clipping. Say, when a full orchestra suddenly enters the scene after a quiet cadenza...
Another wattage question.
I currently have the B&W 805 Signatures and am thinking about upgrading my amp. They apparently can handle 50-120 watts into 8 ohms. My question is, if I were to get an amp that puts out 250-350 watts into 8 ohms would that be okay? I know this is a newbie question but I just want to be sure. Thanks!